Merge pull request #2837 from samsonasik/more-test-common-functions

more tests for Common functions

tests/system/CommonFunctionsTest.php

@@ -12,6 +12,7 @@
 use CodeIgniter\Test\Mock\MockIncomingRequest;
 use CodeIgniter\Test\TestLogger;
 use CodeIgniter\Test\Mock\MockSession;
+use Tests\Support\Models\JobModel;
 
 /**
  * @backupGlobals enabled
@@ -273,6 +274,18 @@ public function testCSRFMeta()
 
 	// ------------------------------------------------------------------------
 
+	public function testModelNotExists()
+	{
+		$this->assertNull(model(UnexsistenceClass::class));
+	}
+
+	public function testModelExists()
+	{
+		$this->assertInstanceOf(JobModel::class, model(JobModel::class));
+	}
+
+	// ------------------------------------------------------------------------
+
 	/**
 	 * @runInSeparateProcess
 	 * @preserveGlobalState  disabled
@@ -405,4 +418,15 @@ public function testRedirectResponseCookies1()
 		$this->assertTrue($answer1->hasCookie('login_time'));
 	}
 
+	//--------------------------------------------------------------------
+
+	public function testTrace()
+	{
+		ob_start();
+		trace();
+		$content = ob_get_clean();
+
+		$this->assertStringContainsString('Debug Backtrace', $content);
+	}
+
 }